var __assign = (this && this.__assign) || function () {
    __assign = Object.assign || function(t) {
        for (var s, i = 1, n = arguments.length; i < n; i++) {
            s = arguments[i];
            for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
                t[p] = s[p];
        }
        return t;
    };
    return __assign.apply(this, arguments);
};
function CountUp(target, endVal, options) {
    var _this = this;
    this.target = target;
    this.endVal = endVal;
    this.options = options;
    this.version = '2.0.4';
    this.defaults = {
        startVal: 0,
        decimalPlaces: 0,
        duration: 2,
        useEasing: true,
        useGrouping: true,
        smartEasingThreshold: 999,
        smartEasingAmount: 333,
        separator: ',',
        decimal: '.',
        prefix: '',
        suffix: ''
    };
    this.finalEndVal = null; // for smart easing
    this.useEasing = true;
    this.countDown = false;
    this.error = '';
    this.startVal = 0;
    this.paused = true;
    this.count = function (timestamp) {
        if (!_this.startTime) {
            _this.startTime = timestamp;
        }
        var progress = timestamp - _this.startTime;
        _this.remaining = _this.duration - progress;
        // to ease or not to ease
        if (_this.useEasing) {
            if (_this.countDown) {
                _this.frameVal = _this.startVal - _this.easingFn(progress, 0, _this.startVal - _this.endVal, _this.duration);
            }
            else {
                _this.frameVal = _this.easingFn(progress, _this.startVal, _this.endVal - _this.startVal, _this.duration);
            }
        }
        else {
            if (_this.countDown) {
                _this.frameVal = _this.startVal - ((_this.startVal - _this.endVal) * (progress / _this.duration));
            }
            else {
                _this.frameVal = _this.startVal + (_this.endVal - _this.startVal) * (progress / _this.duration);
            }
        }
        // don't go past endVal since progress can exceed duration in the last frame
        if (_this.countDown) {
            _this.frameVal = (_this.frameVal < _this.endVal) ? _this.endVal : _this.frameVal;
        }
        else {
            _this.frameVal = (_this.frameVal > _this.endVal) ? _this.endVal : _this.frameVal;
        }
        // decimal
        _this.frameVal = Math.round(_this.frameVal * _this.decimalMult) / _this.decimalMult;
        // format and print value
        _this.printValue(_this.frameVal);
        // whether to continue
        if (progress < _this.duration) {
            _this.rAF = requestAnimationFrame(_this.count);
        }
        else if (_this.finalEndVal !== null) {
            // smart easing
            _this.update(_this.finalEndVal);
        }
        else {
            if (_this.callback) {
                _this.callback();
            }
        }
    };
    // default format and easing functions
    this.formatNumber = function (num) {
        var neg = (num < 0) ? '-' : '';
        var result, x, x1, x2, x3;
        result = Math.abs(num).toFixed(_this.options.decimalPlaces);
        result += '';
        x = result.split('.');
        x1 = x[0];
        x2 = x.length > 1 ? _this.options.decimal + x[1] : '';
        if (_this.options.useGrouping) {
            x3 = '';
            for (var i = 0, len = x1.length; i < len; ++i) {
                if (i !== 0 && (i % 3) === 0) {
                    x3 = _this.options.separator + x3;
                }
                x3 = x1[len - i - 1] + x3;
            }
            x1 = x3;
        }
        // optional numeral substitution
        if (_this.options.numerals && _this.options.numerals.length) {
            x1 = x1.replace(/[0-9]/g, function (w) { return _this.options.numerals[+w]; });
            x2 = x2.replace(/[0-9]/g, function (w) { return _this.options.numerals[+w]; });
        }
        return neg + _this.options.prefix + x1 + x2 + _this.options.suffix;
    };
    this.easeOutExpo = function (t, b, c, d) {
        return c * (-Math.pow(2, -10 * t / d) + 1) * 1024 / 1023 + b;
    };
    this.options = __assign({}, this.defaults, options);
    this.formattingFn = (this.options.formattingFn) ?
        this.options.formattingFn : this.formatNumber;
    this.easingFn = (this.options.easingFn) ?
        this.options.easingFn : this.easeOutExpo;
    this.startVal = this.validateValue(this.options.startVal);
    this.frameVal = this.startVal;
    this.endVal = this.validateValue(endVal);
    this.options.decimalPlaces = Math.max(0 || this.options.decimalPlaces);
    this.decimalMult = Math.pow(10, this.options.decimalPlaces);
    this.resetDuration();
    this.options.separator = String(this.options.separator);
    this.useEasing = this.options.useEasing;
    if (this.options.separator === '') {
        this.options.useGrouping = false;
    }
    this.el = (typeof target === 'string') ? document.getElementById(target) : target;
    if (this.el) {
        this.printValue(this.startVal);
    }
    else {
        this.error = '[CountUp] target is null or undefined';
    }
}
// determines where easing starts and whether to count down or up
CountUp.prototype.determineDirectionAndSmartEasing = function () {
    var end = (this.finalEndVal) ? this.finalEndVal : this.endVal;
    this.countDown = (this.startVal > end);
    var animateAmount = end - this.startVal;
    if (Math.abs(animateAmount) > this.options.smartEasingThreshold) {
        this.finalEndVal = end;
        var up = (this.countDown) ? 1 : -1;
        this.endVal = end + (up * this.options.smartEasingAmount);
        this.duration = this.duration / 2;
    }
    else {
        this.endVal = end;
        this.finalEndVal = null;
    }
    if (this.finalEndVal) {
        this.useEasing = false;
    }
    else {
        this.useEasing = this.options.useEasing;
    }
};
// start animation
CountUp.prototype.start = function (callback) {
    if (this.error) {
        return;
    }
    this.callback = callback;
    if (this.duration > 0) {
        this.determineDirectionAndSmartEasing();
        this.paused = false;
        this.rAF = requestAnimationFrame(this.count);
    }
    else {
        this.printValue(this.endVal);
    }
};
// pause/resume animation
CountUp.prototype.pauseResume = function () {
    if (!this.paused) {
        cancelAnimationFrame(this.rAF);
    }
    else {
        this.startTime = null;
        this.duration = this.remaining;
        this.startVal = this.frameVal;
        this.determineDirectionAndSmartEasing();
        this.rAF = requestAnimationFrame(this.count);
    }
    this.paused = !this.paused;
};
// reset to startVal so animation can be run again
CountUp.prototype.reset = function () {
    cancelAnimationFrame(this.rAF);
    this.paused = true;
    this.resetDuration();
    this.startVal = this.validateValue(this.options.startVal);
    this.frameVal = this.startVal;
    this.printValue(this.startVal);
};
// pass a new endVal and start animation
CountUp.prototype.update = function (newEndVal) {
    cancelAnimationFrame(this.rAF);
    this.startTime = null;
    this.endVal = this.validateValue(newEndVal);
    if (this.endVal === this.frameVal) {
        return;
    }
    this.startVal = this.frameVal;
    if (!this.finalEndVal) {
        this.resetDuration();
    }
    this.determineDirectionAndSmartEasing();
    this.rAF = requestAnimationFrame(this.count);
};
CountUp.prototype.printValue = function (val) {
    var result = this.formattingFn(val);
    if (this.el.tagName === 'INPUT') {
        var input = this.el;
        input.value = result;
    }
    else if (this.el.tagName === 'text' || this.el.tagName === 'tspan') {
        this.el.textContent = result;
    }
    else {
        this.el.innerHTML = result;
    }
};
CountUp.prototype.ensureNumber = function (n) {
    return (typeof n === 'number' && !isNaN(n));
};
CountUp.prototype.validateValue = function (value) {
    var newValue = Number(value);
    if (!this.ensureNumber(newValue)) {
        this.error = "[CountUp] invalid start or end value: " + value;
        return null;
    }
    else {
        return newValue;
    }
};
CountUp.prototype.resetDuration = function () {
    this.startTime = null;
    this.duration = Number(this.options.duration) * 1000;
    this.remaining = this.duration;
};